<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title></title>
	</head>
	<body>
		<script type="text/javascript">
			//转义字符 让字符拥有其他含义
			//以右斜杠开头，取紧随其后的一个字母
			var a = 'abcd';
			var b = 'a\tb \t\n c \t d';
			var c = 'a\u0009b\u0009c';
			var d = "ab\"c";
			console.log(a);
			console.log(b);
			console.log(c);
			console.log(d);
		</script>
	</body>
</html>